{"id":"CVE-2020-11721","details":"load_png in loader.c in libsixel.a in libsixel 1.8.6 has an uninitialized pointer leading to an invalid call to free, which can cause a denial of service.","modified":"2026-07-08T15:10:55.083120Z","published":"2020-04-12T19:15:10.367Z","references":[{"type":"EVIDENCE","url":"https://github.com/saitoha/libsixel/issues/134"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/saitoha/libsixel","events":[{"introduced":"6a5be8b72d84037b83a5ea838e17bcf372ab1d5f"},{"last_affected":"6a5be8b72d84037b83a5ea838e17bcf372ab1d5f"}],"database_specific":{"extracted_events":[{"introduced":"1.8.6"},{"last_affected":"1.8.6"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:saitoha:libsixel:1.8.6:*:*:*:*:*:*:*"}}],"versions":["1.8.6","v1.8.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11721.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}